# ProteoAR vs PDB Viewer

The clearest difference is in-app purchases: ProteoAR at none against PDB Viewer's 1. ProteoAR also leads on iOS requirement (13.0 vs 16.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. PDB Viewer sells 1 one-off in-app purchase. ProteoAR asks for nothing beyond the download.

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on September 30, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | ProteoAR | PDB Viewer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Size | 346 MB | 2 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Corporacion Universidad de Concepcion](https://appshunter.io/developer/1215832892) | [Qvyshift LLC](https://appshunter.io/developer/1536442361) |

## What reviewers say

### ProteoAR

[App page](https://appshunter.io/ios/app/proteoar/id6747891649)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### PDB Viewer

[App page](https://appshunter.io/ios/app/pdb-viewer-3d-molecules/id6777468488)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PDB Viewer Pro | $9.99 | one-time |


## Frequently asked questions

### Is ProteoAR free?

ProteoAR is free to download, with no in-app purchases.

### Is PDB Viewer free?

PDB Viewer is free to download, with in-app purchases available.

### Do ProteoAR or PDB Viewer have ads?

Neither ProteoAR nor PDB Viewer shows ads.

### Which is updated more often, ProteoAR or PDB Viewer?

ProteoAR ships an update monthly, and PDB Viewer monthly. Most recently, ProteoAR was updated on September 30, 2026 and PDB Viewer on October 16, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*